Recruting Afgan/Ireland, ZIM players will only lower the value of BPL. It will be classified as a Minnow T20. This time BPL might be a hit/miss. But nest year, get the players from TOP 6 TEST teams, otherwise, no one outside of BD will care for BPL. Cricinfo hardly covers BPL2.
Afgan has a few hundred TV watchers maybe. No one watches cricket in IRE, ZIM. Thats it.

You want to be at the top, get the top class name brand STAR players. period.